On Wed, Jun 28, 2017 at 03:48:50PM -0500, Segher Boessenkool wrote:
> As Peter said, I'd rather test for "ppc32", so this works anywhere.
Fair enough.
> That would give
>
> proc check_cpu_supports_available { } {
> if { [istarget powerpc*-*-*] } {
> return [check_runtime cpu_supports_available {
> int main() { return !__builtin_cpu_supports ("ppc32"); }
> }]
> }
>
> return 0
> }
>
> (and other archs can add their stuff then).
>
> Why did you use check_runtime_nocache btw? Is that just copy-paste?
Just copy-paste.
Like the target_clones stuff, right now, it is only x86 and PowerPC that
supports __builtin_cpu*.
I don't really see the point of having a machine independent test for
__builtin_cpu_*, but if you feel strongly about it go for it.
--
Michael Meissner, IBM
IBM, M/S 2506R, 550 King Street, Littleton, MA 01460-6245, USA
email: meiss...@linux.vnet.ibm.com, phone: +1 (978) 899-4797
